import { request } from "../../request/index";
Page({
  data: {
    tabs: [
      {
        id: 0,
        value: "综合",
        isActive: true,
      },
      {
        id: 1,
        value: "销量",
        isActive: false,
      },
      {
        id: 2,
        value: "价格",
        isActive: false,
      },
    ],
    goodsList: [],
  },
  //接口耀得参数
  QueryParams: {
    query: "",
    cid: "",
    pagenum: 1,
    pagesize: 10,
  },
  totalPages: 1,
  onLoad: function (options) {
    //options-----能够获取上一个页面的属性和属性值;
    //可以获取跳转过来时候传递的参数;
    this.QueryParams.cid = options.cid || "";
    this.QueryParams.query = options.query || "";
    this.getGoodsList();
  },
  async getGoodsList() {
    const res = await request({
      url: "/goods/search",
      data: this.QueryParams,
    });
    console.log(res);
    //获取总条数;
    const total = res.total;
    this.totalPages = Math.ceil(total / this.QueryParams);

    this.setData({
      goodsList: [...this.data.goodsList, ...res.goods],
    });

    //关闭下拉刷新的窗口，如果没有调用下拉刷新的窗口，关闭也不会报错
    wx.stopPullDownRefresh();
  },
  //标题点击事件，从子组件中传递过来了一个index
  handleTabsItemChange(e) {
    //获取被点击事件的索引
    const { index } = e.detail;
    //修改原数组;
    let { tabs } = this.data;
    tabs.forEach((v, i) => {
      i === index ? (v.isActive = true) : (v.isActive = false);
    });
    this.setData({
      tabs,
    });
  },
  //页面上滑滚动条触底事件;
  onReachBottom() {
    if (this.QueryParams.pagenum >= this.totalPages) {
      wx.showToast({
        title: "没有下一页数据",
      });
    } else {
      this.QueryParams.pagenum++;
      this.getGoodsList();
    }
  },
  onPullDownRefresh() {
    //重置数组
    this.setData({
      goodsList: [],
    });
    //重置页码
    this.QueryParams.pagenum = 1;
    this.getGoodsList();
  },
});
